Form 4: TransDigm Co-COO Joel Reiss Sells 3,000 Shares Following Option Exercise

Sentiment:

Insider Transaction Report 20 June 2025 5:10 PM

TransDigm Group INC's Co-Chief Operating Officer, Joel Reiss, significantly reduced his direct beneficial ownership by 3,000 shares on June 20, 2025, through a series of sales after exercising stock options.

Worse than expectedJoel Reiss, Co-Chief Operating Officer, decreased his direct beneficial ownership of TransDigm Group INC common stock by 3,000 shares, from 6,600 to 3,600 shares, through a series of sales on June 20, 2025. This includes the sale of shares acquired from an option exercise and additional shares from existing holdings, which can be interpreted as a negative signal by the market.

Summary

Joel Reiss, Co-Chief Operating Officer of TransDigm Group INC (TDG), engaged in multiple stock transactions on June 20, 2025.
Mr. Reiss exercised stock options to acquire 3,000 shares of Common Stock at an exercise price of $284.97 per share.
Concurrently, he disposed of a total of 3,000 shares of Common Stock through a series of open market sales.
The sale prices for these shares ranged from $1,410.11 to $1,431.11, with several sales reported at weighted average prices.
Following these transactions, Mr. Reiss's direct beneficial ownership of TransDigm Common Stock decreased from 6,600 shares to 3,600 shares.
The transactions were made pursuant to a Rule 10b5-1(c) plan, indicating a pre-arranged trading strategy.

Sentiment

Score: 3

Explanation: The sentiment is moderately negative due to a significant net reduction in insider beneficial ownership, even though the transactions were pre-planned under a Rule 10b5-1 plan.

Negatives

The Co-Chief Operating Officer's direct beneficial ownership of TransDigm Group INC common stock decreased by 3,000 shares, which could be perceived negatively by investors as a reduction in insider stake.

Future Outlook

This Form 4 filing does not contain any forward-looking statements or guidance regarding the company's future outlook.

Industry Context

This filing reflects an individual insider transaction and does not provide broader industry context or trends. TransDigm Group INC operates in the aerospace and defense industry, manufacturing highly engineered aircraft components.

Stakeholder Impact

Shareholders: The significant insider selling could be perceived negatively, potentially influencing investor sentiment and the company's stock price.

Key Dates

Date	Description
09/30/2021	Date stock options became exercisable.
06/20/2025	Date of stock option exercise and subsequent share sales by Joel Reiss.
11/08/2027	Expiration date of the exercised stock options.

Recommendation

hold

Keywords

TransDigm Group INC, TDG, SEC Form 4, Insider Trading, Stock Option Exercise, Share Sale, Joel Reiss, Co-Chief Operating Officer, 10b5-1 Plan, Aerospace and Defense

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